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| Laser Surface
Treatment and Micro-Welding |
| In 2000, Yiu Hwa Tech. Introduced the laser treatment
for surface solutions of metal material and then the micro
welding for precision join of metals in 2001 in Taiwan.Now,
we provide industries laser processing and engineering
for surface modification, metallurgical bonding coating,
micro welding with no dimension distortion or little distortion
on used or new parts.
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Laser processes
Laser Heat Treating: Metallurgical phase change
in solid state is performed by high-energy laser beam
with rapid heating and solidification rate. That can
yield 15% greater hardness than conventional heat treatment.
Laser Cladding: Metal or/and ceramic additions
are made to a shallow melted region of substrate surface
and metallurgical bonding between the two materials
is created. It is able to solve wear and high temperature
applications like abrasion, erosion and/or corrosion.
Laser Alloying: Metal or/and ceramic additions
are made to a melted region of substrate surface and
new alloy is created on the surface. It is able to solve
the problems in wear and high temperature applications.
Laser Welding: A Thin layer of the surface is
melted and joined with rapid solidification and with
little dimension change. It is suitable for the join
with different metals.
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Advantages
Very low heat affected zoneo
Minimal dimension distortiono
Fine microstructureoMetallurgical bondingo
Possible high quality refurbishment and surface modificationo
Revolutionary concept for part design and part refurbishmento
Suitable for the materials including steel, stainless
steel, iron base alloy, aluminum alloy, copper alloy,
nickel base alloy, cobalt base alloy and other metals
or alloy
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